İrem BOZBEY, Gülce TAŞKOR ÖNEL, Burçin TÜRKMENOĞLU, Şule GÜRSOY, Esra DİLEK

Novel (p-tolyl)-3(2H)-pyridazinone derivatives containing substituted-1,2,3-triazole moiety as new anti-Alzheimer agents: Synthesis, in vitro and in silico assays

Alzheimer hastalığı (AH), demansın en yaygın nedeni olan kronik nörodejeneratif bir hastalıktır. Hastalığa yakalanma riski yaşla birlikte artar. Hastalığın histopatolojisi incelendiğinde senil amiloid plakları, nörofibriler yumak oluşumu, sinaps-nöron kaybı ve beyinde belirgin atrofi saptanır. Alzheimer hastalığında asetilkolin sentezinden sorumlu olan kolin asetil transferaz düzeyindeki azalma %58-90'dır. Mevcut ilaçlar hastalığın ilerlemesini durduramadığından, hastalığın temel nedenini hedef alan yeni ilaçlara büyük ihtiyaç vardır. Bu çalışmada asetilkolinesteraz inhibisyonu gösteren triazol-piridazinon türevi bileşikler sentezlenmiştir ve enzim inhibisyonları araştırılmıştır. Bileşik 6e, 0.049 ± 0.014 µM Ki değeri ile en güçlü inhibitör etkiyi göstermiştir (Takrin Ki= 0.226 ± 0.025 µM). Ayrıca sentezlenen tüm bileşikler için in-silico çalışmalar yapıldı.

Anahtar Kelimeler:

3(2H)-piridazinon, Asetilkolinesteraz, moleküler docking

Novel (p-tolyl)-3(2H)-pyridazinone derivatives containing substituted-1,2,3-triazole moiety as new anti-Alzheimer agents: Synthesis, in vitro and in silico assays

Alzheimer's disease (AD) is a chronic neurodegenerative disease that is the most common cause of dementia. The risk of developing the disease increases with age. When the histopathology of the disease is examined, senile amyloid plaques, neurofibrillary tangle formation, synapse-neuron loss and marked atrophy in the brain are detected. The decrease in the level of choline acetyltransferase, which is responsible for the synthesis of acetylcholine in Alzheimer's disease, is 58-90%. There is a great need for new drugs that target the basis of the cause of the disease, as existing drugs cannot stop the progression of the disease. In this study, triazole-pyridazinone derivative compounds showing acetylcholinesterase inhibition were synthesized and their inhibitions were investigated. Compound 6e exhibited the strongest inhibitory effect with a Ki value of 0.049 ± 0.014 µM (Tacrine Ki= 0.226 ± 0.025 µM). In addition, in silico studies were applied for all compounds.

Keywords:

3(2H)-pyridazinone, Acetylcholinesterase, molecular docking,

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